extern int yydebug;
+/*
+ * TODO: babeltrace_ctf_console_output ensures that we only print
+ * discarded events when ctf-text plugin is used. Should be cleaned up
+ * with the plugin system redesign.
+ */
+int babeltrace_ctf_console_output;
+
static
struct bt_trace_descriptor *ctf_open_trace(const char *path, int flags,
void (*packet_seek)(struct bt_stream_pos *pos, size_t index,
uint64_t oldval, newval, updateval;
if (unlikely(integer_declaration->len == 64)) {
- stream->prev_cycles_timestamp = stream->cycles_timestamp;
stream->cycles_timestamp = integer_definition->value._unsigned;
- stream->prev_real_timestamp = ctf_get_real_timestamp(stream,
- stream->prev_cycles_timestamp);
stream->real_timestamp = ctf_get_real_timestamp(stream,
stream->cycles_timestamp);
return;
updateval = stream->cycles_timestamp;
updateval &= ~((1ULL << integer_declaration->len) - 1);
updateval += newval;
- stream->prev_cycles_timestamp = stream->cycles_timestamp;
stream->cycles_timestamp = updateval;
/* convert to real timestamp */
- stream->prev_real_timestamp = ctf_get_real_timestamp(stream,
- stream->prev_cycles_timestamp);
stream->real_timestamp = ctf_get_real_timestamp(stream,
stream->cycles_timestamp);
}
fprintf(fp, "%x", (unsigned int) uuid[i]);
}
-void ctf_print_discarded(FILE *fp, struct ctf_stream_definition *stream,
- int end_stream)
+/*
+ * Discarded events can be either:
+ * - discarded after end of previous buffer due to buffer full:
+ * happened within range: [ prev_timestamp_end, timestamp_begin ]
+ * - discarded within current buffer due to either event too large or
+ * nested wrap-around:
+ * happened within range: [ timestamp_begin, timestamp_end ]
+ *
+ * Given we have discarded counters of those two types merged into the
+ * events_discarded counter, we need to use the union of those ranges:
+ * [ prev_timestamp_end, timestamp_end ]
+ */
+static
+void ctf_print_discarded(FILE *fp, struct ctf_stream_definition *stream)
{
- fprintf(fp, "[warning] Tracer discarded %" PRIu64 " events %sbetween [",
- stream->events_discarded,
- end_stream ? "at end of stream " : "");
+ if (!stream->events_discarded || !babeltrace_ctf_console_output) {
+ return;
+ }
+ fflush(stdout);
+ fprintf(fp, "[warning] Tracer discarded %" PRIu64 " events between [",
+ stream->events_discarded);
if (opt_clock_cycles) {
ctf_print_timestamp(fp, stream,
- stream->prev_cycles_timestamp);
+ stream->prev.cycles.end);
fprintf(fp, "] and [");
ctf_print_timestamp(fp, stream,
- stream->prev_cycles_timestamp_end);
+ stream->current.cycles.end);
} else {
ctf_print_timestamp(fp, stream,
- stream->prev_real_timestamp);
+ stream->prev.real.end);
fprintf(fp, "] and [");
ctf_print_timestamp(fp, stream,
- stream->prev_real_timestamp_end);
+ stream->current.real.end);
}
fprintf(fp, "] in trace UUID ");
print_uuid(fp, stream->stream_class->trace->uuid);
return 0;
}
+void ctf_update_current_packet_index(struct ctf_stream_definition *stream,
+ struct packet_index *prev_index,
+ struct packet_index *cur_index)
+{
+ uint64_t events_discarded_diff;
+
+ /* Update packet index time information */
+
+ /* Current packet begin/end */
+ stream->current.real.begin =
+ cur_index->ts_real.timestamp_begin;
+ stream->current.cycles.begin =
+ cur_index->ts_cycles.timestamp_begin;
+ stream->current.real.end =
+ cur_index->ts_real.timestamp_end;
+ stream->current.cycles.end =
+ cur_index->ts_cycles.timestamp_end;
+
+ /* Update packet index discarded event information */
+ events_discarded_diff = cur_index->events_discarded;
+ if (prev_index) {
+ /* Previous packet begin/end */
+ stream->prev.cycles.begin =
+ prev_index->ts_cycles.timestamp_begin;
+ stream->prev.real.begin =
+ prev_index->ts_real.timestamp_begin;
+ stream->prev.cycles.end =
+ prev_index->ts_cycles.timestamp_end;
+ stream->prev.real.end =
+ prev_index->ts_real.timestamp_end;
+
+ events_discarded_diff -= prev_index->events_discarded;
+ /*
+ * Deal with 32-bit wrap-around if the tracer provided a
+ * 32-bit field.
+ */
+ if (prev_index->events_discarded_len == 32) {
+ events_discarded_diff = (uint32_t) events_discarded_diff;
+ }
+ } else {
+ /*
+ * First packet: use current packet info as limits for
+ * previous packet.
+ */
+ stream->prev.cycles.begin =
+ stream->prev.cycles.end =
+ stream->current.cycles.begin;
+ stream->prev.real.begin =
+ stream->prev.real.end =
+ stream->current.real.begin;
+ }
+ stream->events_discarded = events_discarded_diff;
+}
+
/*
* for SEEK_CUR: go to next packet.
* for SEEK_SET: go to packet numer (index).
container_of(pos, struct ctf_file_stream, pos);
int ret;
off_t off;
- struct packet_index *packet_index;
+ struct packet_index *packet_index, *prev_index;
switch (whence) {
case SEEK_CUR:
switch (whence) {
case SEEK_CUR:
{
- uint64_t events_discarded_diff;
-
if (pos->offset == EOF) {
return;
}
assert(pos->cur_index < pos->packet_index->len);
-
- /* For printing discarded event count */
- packet_index = &g_array_index(pos->packet_index,
- struct packet_index, pos->cur_index);
- file_stream->parent.prev_cycles_timestamp_end =
- packet_index->ts_cycles.timestamp_end;
- file_stream->parent.prev_cycles_timestamp =
- packet_index->ts_cycles.timestamp_begin;
- file_stream->parent.prev_real_timestamp_end =
- packet_index->ts_real.timestamp_end;
- file_stream->parent.prev_real_timestamp =
- packet_index->ts_real.timestamp_begin;
-
- events_discarded_diff = packet_index->events_discarded;
- if (pos->cur_index > 0) {
- packet_index = &g_array_index(pos->packet_index,
- struct packet_index,
- pos->cur_index - 1);
- events_discarded_diff -= packet_index->events_discarded;
- /*
- * Deal with 32-bit wrap-around if the
- * tracer provided a 32-bit field.
- */
- if (packet_index->events_discarded_len == 32) {
- events_discarded_diff = (uint32_t) events_discarded_diff;
- }
- }
- file_stream->parent.events_discarded = events_discarded_diff;
- file_stream->parent.prev_real_timestamp = file_stream->parent.real_timestamp;
- file_stream->parent.prev_cycles_timestamp = file_stream->parent.cycles_timestamp;
/* The reader will expect us to skip padding */
++pos->cur_index;
break;
pos->offset = EOF;
return;
}
- packet_index = &g_array_index(pos->packet_index,
- struct packet_index, index);
- pos->last_events_discarded = packet_index->events_discarded;
pos->cur_index = index;
- file_stream->parent.prev_real_timestamp = 0;
- file_stream->parent.prev_real_timestamp_end = 0;
- file_stream->parent.prev_cycles_timestamp = 0;
- file_stream->parent.prev_cycles_timestamp_end = 0;
break;
default:
assert(0);
}
+
+ packet_index = &g_array_index(pos->packet_index,
+ struct packet_index, pos->cur_index);
+ if (pos->cur_index > 0) {
+ prev_index = &g_array_index(pos->packet_index,
+ struct packet_index,
+ pos->cur_index - 1);
+ } else {
+ prev_index = NULL;
+ }
+ ctf_update_current_packet_index(&file_stream->parent,
+ prev_index, packet_index);
+
if (pos->cur_index >= pos->packet_index->len) {
- /*
- * We need to check if we are in trace read or
- * called from packet indexing. In this last
- * case, the collection is not there, so we
- * cannot print the timestamps.
- */
- if ((&file_stream->parent)->stream_class->trace->parent.collection) {
- /*
- * When a stream reaches the end of the
- * file, we need to show the number of
- * events discarded ourselves, because
- * there is no next event scheduled to
- * be printed in the output.
- */
- if (file_stream->parent.events_discarded) {
- fflush(stdout);
- ctf_print_discarded(stderr,
- &file_stream->parent,
- 1);
- file_stream->parent.events_discarded = 0;
- }
- }
pos->offset = EOF;
return;
}
+
+ /*
+ * We need to check if we are in trace read or called
+ * from packet indexing. In this last case, the
+ * collection is not there, so we cannot print the
+ * timestamps.
+ */
+ if ((&file_stream->parent)->stream_class->trace->parent.collection) {
+ ctf_print_discarded(stderr, &file_stream->parent);
+ }
+
packet_index = &g_array_index(pos->packet_index,
struct packet_index,
pos->cur_index);
}
static
-int ctf_open_trace_metadata_packet_read(struct ctf_trace *td, FILE *in,
+int ctf_trace_metadata_packet_read(struct ctf_trace *td, FILE *in,
FILE *out)
{
struct metadata_packet_header header;
}
static
-int ctf_open_trace_metadata_stream_read(struct ctf_trace *td, FILE **fp,
+int ctf_trace_metadata_stream_read(struct ctf_trace *td, FILE **fp,
char **buf)
{
FILE *in, *out;
return -errno;
}
for (;;) {
- ret = ctf_open_trace_metadata_packet_read(td, in, out);
+ ret = ctf_trace_metadata_packet_read(td, in, out);
if (ret) {
break;
}
}
static
-int ctf_open_trace_metadata_read(struct ctf_trace *td,
- void (*packet_seek)(struct bt_stream_pos *pos, size_t index,
- int whence), FILE *metadata_fp)
+int ctf_trace_metadata_read(struct ctf_trace *td, FILE *metadata_fp,
+ struct ctf_scanner *scanner, int append)
{
- struct ctf_scanner *scanner;
struct ctf_file_stream *metadata_stream;
FILE *fp;
char *buf = NULL;
metadata_stream = g_new0(struct ctf_file_stream, 1);
metadata_stream->pos.last_offset = LAST_OFFSET_POISON;
- if (packet_seek) {
- metadata_stream->pos.packet_seek = packet_seek;
- } else {
- fprintf(stderr, "[error] packet_seek function undefined.\n");
- ret = -1;
- goto end_free;
- }
-
if (metadata_fp) {
fp = metadata_fp;
metadata_stream->pos.fd = -1;
yydebug = 1;
if (packet_metadata(td, fp)) {
- ret = ctf_open_trace_metadata_stream_read(td, &fp, &buf);
+ ret = ctf_trace_metadata_stream_read(td, &fp, &buf);
if (ret) {
- /* Warn about empty metadata */
- fprintf(stderr, "[warning] Empty metadata.\n");
- goto end_packet_read;
+ goto end;
}
td->metadata_string = buf;
td->metadata_packetized = 1;
} else {
- unsigned int major, minor;
- ssize_t nr_items;
-
- td->byte_order = BYTE_ORDER;
-
- /* Check text-only metadata header and version */
- nr_items = fscanf(fp, "/* CTF %u.%u", &major, &minor);
- if (nr_items < 2)
- fprintf(stderr, "[warning] Ill-shapen or missing \"/* CTF x.y\" header for text-only metadata.\n");
- if (check_version(major, minor) < 0) {
- ret = -EINVAL;
- goto end_packet_read;
+ if (!append) {
+ unsigned int major, minor;
+ ssize_t nr_items;
+
+ td->byte_order = BYTE_ORDER;
+
+ /* Check text-only metadata header and version */
+ nr_items = fscanf(fp, "/* CTF %10u.%10u", &major, &minor);
+ if (nr_items < 2)
+ fprintf(stderr, "[warning] Ill-shapen or missing \"/* CTF x.y\" header for text-only metadata.\n");
+ if (check_version(major, minor) < 0) {
+ ret = -EINVAL;
+ goto end;
+ }
+ rewind(fp);
}
- rewind(fp);
}
- scanner = ctf_scanner_alloc(fp);
- if (!scanner) {
- fprintf(stderr, "[error] Error allocating scanner\n");
- ret = -ENOMEM;
- goto end_scanner_alloc;
- }
- ret = ctf_scanner_append_ast(scanner);
+ ret = ctf_scanner_append_ast(scanner, fp);
if (ret) {
fprintf(stderr, "[error] Error creating AST\n");
goto end;
goto end;
}
end:
- ctf_scanner_free(scanner);
-end_scanner_alloc:
-end_packet_read:
if (fp) {
closeret = fclose(fp);
if (closeret) {
return NULL;
}
+static
+int copy_event_declarations_stream_class_to_stream(struct ctf_trace *td,
+ struct ctf_stream_declaration *stream_class,
+ struct ctf_stream_definition *stream)
+{
+ size_t def_size, class_size, i;
+ int ret = 0;
+
+ def_size = stream->events_by_id->len;
+ class_size = stream_class->events_by_id->len;
+
+ g_ptr_array_set_size(stream->events_by_id, class_size);
+ for (i = def_size; i < class_size; i++) {
+ struct ctf_event_declaration *event =
+ g_ptr_array_index(stream_class->events_by_id, i);
+ struct ctf_event_definition *stream_event;
+
+ if (!event)
+ continue;
+ stream_event = create_event_definitions(td, stream, event);
+ if (!stream_event) {
+ ret = -EINVAL;
+ goto error;
+ }
+ g_ptr_array_index(stream->events_by_id, i) = stream_event;
+ }
+error:
+ return ret;
+}
+
static
int create_stream_definitions(struct ctf_trace *td, struct ctf_stream_definition *stream)
{
stream->parent_def_scope = stream->stream_event_context->p.scope;
}
stream->events_by_id = g_ptr_array_new();
- g_ptr_array_set_size(stream->events_by_id, stream_class->events_by_id->len);
- for (i = 0; i < stream->events_by_id->len; i++) {
- struct ctf_event_declaration *event = g_ptr_array_index(stream_class->events_by_id, i);
- struct ctf_event_definition *stream_event;
-
- if (!event)
- continue;
- stream_event = create_event_definitions(td, stream, event);
- if (!stream_event) {
- ret = -EINVAL;
- goto error_event;
- }
- g_ptr_array_index(stream->events_by_id, i) = stream_event;
- }
+ ret = copy_event_declarations_stream_class_to_stream(td,
+ stream_class, stream);
+ if (ret)
+ goto error_event;
return 0;
error_event:
int import_stream_packet_index(struct ctf_trace *td,
struct ctf_file_stream *file_stream)
{
- struct ctf_stream_declaration *stream;
struct ctf_stream_pos *pos;
- struct ctf_packet_index ctf_index;
+ struct ctf_packet_index *ctf_index = NULL;
struct ctf_packet_index_file_hdr index_hdr;
struct packet_index index;
+ uint32_t packet_index_len;
int ret = 0;
int first_packet = 1;
size_t len;
ret = -1;
goto error;
}
- if (index_hdr.packet_index_len == 0) {
+ packet_index_len = be32toh(index_hdr.packet_index_len);
+ if (packet_index_len == 0) {
fprintf(stderr, "[error] Packet index length cannot be 0.\n");
ret = -1;
goto error;
}
-
- while (fread(&ctf_index, index_hdr.packet_index_len, 1,
+ /*
+ * Allocate the index length found in header, not internal
+ * representation.
+ */
+ ctf_index = g_malloc0(packet_index_len);
+ while (fread(ctf_index, packet_index_len, 1,
pos->index_fp) == 1) {
uint64_t stream_id;
+ struct ctf_stream_declaration *stream = NULL;
memset(&index, 0, sizeof(index));
- index.offset = be64toh(ctf_index.offset);
- index.packet_size = be64toh(ctf_index.packet_size);
- index.content_size = be64toh(ctf_index.content_size);
- index.ts_cycles.timestamp_begin = be64toh(ctf_index.timestamp_begin);
- index.ts_cycles.timestamp_end = be64toh(ctf_index.timestamp_end);
- index.events_discarded = be64toh(ctf_index.events_discarded);
+ index.offset = be64toh(ctf_index->offset);
+ index.packet_size = be64toh(ctf_index->packet_size);
+ index.content_size = be64toh(ctf_index->content_size);
+ index.ts_cycles.timestamp_begin = be64toh(ctf_index->timestamp_begin);
+ index.ts_cycles.timestamp_end = be64toh(ctf_index->timestamp_end);
+ index.events_discarded = be64toh(ctf_index->events_discarded);
index.events_discarded_len = 64;
index.data_offset = -1;
- stream_id = be64toh(ctf_index.stream_id);
+ stream_id = be64toh(ctf_index->stream_id);
if (!first_packet) {
/* add index to packet array */
}
file_stream->parent.stream_id = stream_id;
- stream = g_ptr_array_index(td->streams, stream_id);
+ if (stream_id < td->streams->len) {
+ stream = g_ptr_array_index(td->streams, stream_id);
+ }
if (!stream) {
fprintf(stderr, "[error] Stream %" PRIu64
" is not declared in metadata.\n",
ret = 0;
error:
+ g_free(ctf_index);
return ret;
}
void (*packet_seek)(struct bt_stream_pos *pos, size_t index,
int whence), FILE *metadata_fp)
{
+ struct ctf_scanner *scanner;
int ret, closeret;
struct dirent *dirent;
struct dirent *diriter;
/*
* Keep the metadata file separate.
+ * Keep scanner object local to the open. We don't support
+ * incremental metadata append for on-disk traces.
*/
-
- ret = ctf_open_trace_metadata_read(td, packet_seek, metadata_fp);
+ scanner = ctf_scanner_alloc();
+ if (!scanner) {
+ fprintf(stderr, "[error] Error allocating scanner\n");
+ ret = -ENOMEM;
+ goto error_metadata;
+ }
+ ret = ctf_trace_metadata_read(td, metadata_fp, scanner, 0);
+ ctf_scanner_free(scanner);
if (ret) {
+ if (ret == -ENOENT) {
+ fprintf(stderr, "[warning] Empty metadata.\n");
+ }
fprintf(stderr, "[warning] Unable to open trace metadata for path \"%s\".\n", path);
goto error_metadata;
}
pos->offset = 0;
pos->dummy = false;
pos->cur_index = 0;
- pos->packet_index = NULL;
pos->prot = PROT_READ;
pos->flags = MAP_PRIVATE;
pos->parent.rw_table = read_dispatch_table;
pos->parent.event_cb = ctf_read_event;
pos->priv = mmap_info->priv;
+ pos->packet_index = g_array_new(FALSE, TRUE,
+ sizeof(struct packet_index));
}
static
int ret;
struct bt_mmap_stream *mmap_info;
- ret = ctf_open_trace_metadata_read(td, ctf_packet_seek, metadata_fp);
+ td->scanner = ctf_scanner_alloc();
+ if (!td->scanner) {
+ fprintf(stderr, "[error] Error allocating scanner\n");
+ ret = -ENOMEM;
+ goto error;
+ }
+ ret = ctf_trace_metadata_read(td, metadata_fp, td->scanner, 0);
if (ret) {
+ if (ret == -ENOENT) {
+ fprintf(stderr, "[warning] Empty metadata.\n");
+ }
goto error;
}
goto error;
}
}
-
return 0;
error:
+ ctf_scanner_free(td->scanner);
return ret;
}
goto error;
}
td = g_new0(struct ctf_trace, 1);
+ td->dirfd = -1;
ret = ctf_open_mmap_trace_read(td, mmap_list, packet_seek, metadata_fp);
if (ret)
goto error_free;
return NULL;
}
+int ctf_append_trace_metadata(struct bt_trace_descriptor *tdp,
+ FILE *metadata_fp)
+{
+ struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent);
+ int i, j;
+ int ret;
+
+ if (!td->scanner)
+ return -EINVAL;
+ ret = ctf_trace_metadata_read(td, metadata_fp, td->scanner, 1);
+ if (ret)
+ return ret;
+ /* for each stream_class */
+ for (i = 0; i < td->streams->len; i++) {
+ struct ctf_stream_declaration *stream_class;
+
+ stream_class = g_ptr_array_index(td->streams, i);
+ if (!stream_class)
+ continue;
+ /* for each stream */
+ for (j = 0; j < stream_class->streams->len; j++) {
+ struct ctf_stream_definition *stream;
+
+ stream = g_ptr_array_index(stream_class->streams, j);
+ if (!stream)
+ continue;
+ ret = copy_event_declarations_stream_class_to_stream(td,
+ stream_class, stream);
+ if (ret)
+ return ret;
+ }
+ }
+ return 0;
+}
+
static
int ctf_convert_index_timestamp(struct bt_trace_descriptor *tdp)
{
}
}
ctf_destroy_metadata(td);
+ ctf_scanner_free(td->scanner);
if (td->dirfd >= 0) {
ret = close(td->dirfd);
if (ret) {
projects / babeltrace.git / blobdiff